Question

ian gilligan et al. claim that during the ice age, humans at grotta del cavallo in europe made fitted clothing by boring holes in pieces of hide and fur with a sharpened bone tool called an awl and then threading cord through the holes to bind the pieces together. eventually, as evidenced by artifacts at khayyargas cave in siberia, someone perforated the mid - of a bone and to make an eye (hole) to hold the cord, thereby creating a sewing needle with which both steps could be performed in a single motion. this sped up the process of making clothing and, by freeing them from the need to push cord through holes manually, allowed artisans to make smaller holes and thus finer seams.
based on the text, what can be concluded about clothing made
a clothing made with awls at sites like grotta del cavallo likely had coarser seams than clothing made with needles at sites like khayyargas cave.
b clothing made with awls at sites like grotta del cavallo was made more quickly than clothing made with needles at sites like khayyargas cave.
c clothing made at sites like grotta del cavallo was likely made with needles, while clothing made at sites like khayyargas cave was made with awls.
d clothing made with awls at sites like grotta del cavallo likely had finer seams than clothing made with needles at sites like khayyargas cave.

Explanation:

The text mentions that at Grotta del Cavallo, humans used an awl to bore holes in hide and fur, and at Khayargas Cave, a sewing - needle was used. The sewing - needle sped up the process and allowed for smaller holes and finer seams. So, clothing made with awls at sites like Grotta del Cavallo likely had coarser seams than clothing made with needles at sites like Khayargas Cave.

Answer:

D. Clothing made with awls at sites like Grotta del Cavallo likely had coarser seams than clothing made with needles at sites like Khayargas Cave.